[ 81.255259][ T1111] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.62' (ED25519) to the list of known hosts.
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[ 188.132091][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 188.139245][ C1] rcu: 0-....: (1 GPs behind) idle=71b/1/0x4000000000000002 softirq=5351/5352 fqs=5250
[ 188.149518][ C1] (detected by 1, t=10502 jiffies, g=4837, q=170)
[ 188.156046][ C1] Sending NMI from CPU 1 to CPUs 0:
[ 188.161261][ C0] NMI backtrace for cpu 0
[ 188.161283][ C0] CPU: 0 PID: 4214 Comm: syz-executor839 Not tainted syzkaller #0
[ 188.161297][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
[ 188.161313][ C0] RIP: 0010:unwind_next_frame+0x6e6/0x1d90
[ 188.161346][ C0] Code: 84 ee 01 00 00 44 89 f9 80 e1 07 38 c1 0f 8c e0 01 00 00 be 02 00 00 00 48 89 7c 24 08 4c 89 ff e8 7f 1b 89 00 e9 fd 14 00 00 <48> 8b 44 24 40 42 80 3c 28 00 4c 8b 74 24 38 74 0c 4c 89 f7 e8 a1
[ 188.161358][ C0] RSP: 0018:ffffc90000006d40 EFLAGS: 00000097
[ 188.161370][ C0] RAX: 0000000000000005 RBX: ffffc90000006e60 RCX: ffffffff8d987ce8
[ 188.161380][ C0] RDX: ffffffff8e042ef0 RSI: ffffffff8e042ed8 RDI: 0000000000000001
[ 188.161390][ C0] RBP: ffffffff81494924 R08: 0000000000000009 R09: ffffc90000006eb0
[ 188.161399][ C0] R10: dffffc0000000000 R11: fffff52000000dd8 R12: 1ffffffff1c085de
[ 188.161409][ C0] R13: dffffc0000000000 R14: ffffffff8e042ef4 R15: 0000000000000005
[ 188.161419][ C0] FS: 00007f181ec106c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
[ 188.161431][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 188.161441][ C0] CR2: 0000008000000002 CR3: 000000007a24f000 CR4: 00000000003506f0
[ 188.161453][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 188.161460][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 188.161468][ C0] Call Trace:
[ 188.161472][ C0]
[ 188.161480][ C0] ? irq_exit_rcu+0x5/0x20
[ 188.161496][ C0] ? irq_exit_rcu+0x5/0x20
[ 188.161508][ C0] perf_callchain_kernel+0x449/0x720
[ 188.161527][ C0] ? arch_perf_update_userpage+0x3c0/0x3c0
[ 188.161545][ C0] ? irq_exit_rcu+0x5/0x20
[ 188.161559][ C0] ? get_callchain_entry+0x181/0x3b0
[ 188.161574][ C0] get_perf_callchain+0x356/0x460
[ 188.161589][ C0] ? put_callchain_entry+0xb0/0xb0
[ 188.161604][ C0] ? __perf_event_header__init_id+0x3f0/0x500
[ 188.161620][ C0] perf_prepare_sample+0x352/0x1cd0
[ 188.161637][ C0] ? perf_callchain+0x190/0x190
[ 188.161650][ C0] ? perf_pmu_nop_void+0x5/0x10
[ 188.161666][ C0] perf_event_output_forward+0x185/0x2e0
[ 188.161681][ C0] ? perf_get_page_size+0x430/0x430
[ 188.161700][ C0] ? __perf_event_account_interrupt+0x187/0x280
[ 188.161715][ C0] __perf_event_overflow+0x364/0x530
[ 188.161729][ C0] ? __lock_acquire+0x13bc/0x7d10
[ 188.161747][ C0] perf_swevent_event+0x4ad/0x530
[ 188.161763][ C0] perf_tp_event+0x383/0xbf0
[ 188.161778][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0
[ 188.161811][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0
[ 188.161827][ C0] perf_trace_preemptirq_template+0x2aa/0x360
[ 188.161844][ C0] ? asm_sysvec_irq_work+0x16/0x20
[ 188.161863][ C0] ? trace_event_raw_event_preemptirq_template+0x290/0x290
[ 188.161879][ C0] ? __irq_exit_rcu+0x147/0x230
[ 188.161892][ C0] ? irq_exit_rcu+0x20/0x20
[ 188.161910][ C0] ? asm_sysvec_irq_work+0x16/0x20
[ 188.161924][ C0] trace_irq_enable_rcuidle+0x108/0x180
[ 188.161939][ C0] trace_hardirqs_on+0x57/0x80
[ 188.161953][ C0] asm_sysvec_irq_work+0x16/0x20
[ 188.161965][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0
[ 188.161981][ C0] Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 e2 f0 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
[ 188.161992][ C0] RSP: 0018:ffffc900000077a0 EFLAGS: 00000206
[ 188.162002][ C0] RAX: 12b57fa07da77700 RBX: 1ffff92000000ef8 RCX: 12b57fa07da77700
[ 188.162012][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b2780 RDI: ffffffff8a79f800
[ 188.162022][ C0] RBP: ffffc90000007880 R08: ffff8880b903b30b R09: 1ffff11017207661
[ 188.162032][ C0] R10: dffffc0000000000 R11: ffffed1017207662 R12: ffffffff8c322f00
[ 188.162042][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
[ 188.162059][ C0] ? __rcu_read_unlock+0xd0/0xd0
[ 188.162074][ C0] ? __netif_receive_skb+0x290/0x290
[ 188.162093][ C0] __rcu_read_unlock+0x78/0xd0
[ 188.162107][ C0] netif_receive_skb_list_internal+0x961/0xbd0
[ 188.162125][ C0] ? netif_receive_skb_list+0x3e0/0x3e0
[ 188.162143][ C0] ? detach_buf_split+0x8a9/0xab0
[ 188.162161][ C0] napi_complete_done+0x378/0x850
[ 188.162176][ C0] ? free_old_xmit_skbs+0x252/0x2b0
[ 188.162191][ C0] ? __napi_schedule_irqoff+0x230/0x230
[ 188.162205][ C0] ? virtqueue_get_buf_ctx+0x4a7/0xfd0
[ 188.162222][ C0] ? virtqueue_enable_cb_prepare+0x22e/0x560
[ 188.162239][ C0] virtnet_poll+0x955/0xf40
[ 188.162277][ C0] ? refill_work+0x210/0x210
[ 188.162290][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 188.162308][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 188.162326][ C0] __napi_poll+0xc0/0x430
[ 188.162343][ C0] net_rx_action+0x4d4/0xa10
[ 188.162363][ C0] ? net_tx_action+0x880/0x880
[ 188.162378][ C0] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 188.162396][ C0] ? lock_chain_count+0x20/0x20
[ 188.162418][ C0] handle_softirqs+0x339/0x830
[ 188.162433][ C0] ? __irq_exit_rcu+0x13b/0x230
[ 188.162449][ C0] ? do_softirq+0x210/0x210
[ 188.162464][ C0] ? irqtime_account_irq+0xb2/0x1b0
[ 188.162481][ C0] __irq_exit_rcu+0x13b/0x230
[ 188.162494][ C0] ? irq_exit_rcu+0x20/0x20
[ 188.162507][ C0] ? do_raw_spin_unlock+0x11d/0x230
[ 188.162525][ C0] irq_exit_rcu+0x5/0x20
[ 188.162537][ C0] common_interrupt+0xb5/0xd0
[ 188.162551][ C0]
[ 188.162555][ C0]
[ 188.162560][ C0] asm_common_interrupt+0x22/0x40
[ 188.162573][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0xbc/0x120
[ 188.162588][ C0] Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 2f ca 8c f7 65 8b 05 d0 d7 3c 76 85 c0 74 3c 48 c7 04 24 0e 36
[ 188.162599][ C0] RSP: 0018:ffffc90002eef9c0 EFLAGS: 00000206
[ 188.162610][ C0] RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: 12b57fa07da77700
[ 188.162620][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b2780 RDI: 0000000000000001
[ 188.162629][ C0] RBP: ffffc90002eefa40 R08: ffff8880b903b30b R09: 1ffff11017207661
[ 188.162640][ C0] R10: dffffc0000000000 R11: ffffed1017207662 R12: dffffc0000000000
[ 188.162651][ C0] R13: ffff88806ff7d940 R14: ffff88806ff7e350 R15: 1ffff920005ddf38
[ 188.162668][ C0] ? _raw_spin_unlock+0x40/0x40
[ 188.162682][ C0] ? do_raw_spin_unlock+0x11d/0x230
[ 188.162698][ C0] try_to_wake_up+0x69d/0x1050
[ 188.162718][ C0] wake_up_q+0x78/0xc0
[ 188.162733][ C0] __mutex_unlock_slowpath+0x658/0x6c0
[ 188.162751][ C0] ? mutex_unlock+0x10/0x10
[ 188.162765][ C0] ? bpf_lsm_capable+0x5/0x10
[ 188.162777][ C0] ? security_capable+0x85/0xb0
[ 188.162804][ C0] ? trace_event_reg+0x21f/0x260
[ 188.162820][ C0] ? perf_trace_event_init+0x386/0xa10
[ 188.162832][ C0] ? rcu_lock_release+0x9/0x20
[ 188.162848][ C0] perf_trace_init+0x20a/0x2d0
[ 188.162862][ C0] perf_tp_event_init+0x89/0x110
[ 188.162877][ C0] perf_try_init_event+0x12b/0x3d0
[ 188.162894][ C0] perf_event_alloc+0xfcf/0x2240
[ 188.162920][ C0] __se_sys_perf_event_open+0x5de/0x1bb0
[ 188.162938][ C0] ? __x64_sys_perf_event_open+0xc0/0xc0
[ 188.162958][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 188.162972][ C0] ? __x64_sys_perf_event_open+0x1c/0xc0
[ 188.162986][ C0] do_syscall_64+0x4c/0xa0
[ 188.162998][ C0] ? clear_bhb_loop+0x30/0x80
[ 188.163011][ C0] ? clear_bhb_loop+0x30/0x80
[ 188.163024][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 188.163038][ C0] RIP: 0033:0x7f181ec2ff59
[ 188.163050][ C0] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[ 188.163060][ C0] RSP: 002b:00007f181ec10228 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
[ 188.163073][ C0] RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007f181ec2ff59
[ 188.163082][ C0] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 00002000000003c0
[ 188.163091][ C0] RBP: 00002000000003c0 R08: 0000000000000000 R09: 0000000000000000
[ 188.163099][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f181ece0b28
[ 188.163108][ C0] R13: 00007f181ece0b20 R14: 00007ffc6d8297a0 R15: 00007ffc6d829888
[ 188.163141][ C0]
[ 188.163150][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.884 msecs
[ 188.961020][ T21] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10582 jiffies s: 509 root: 0x1/.
[ 188.973016][ T21] rcu: blocking rcu_node structures (internal RCU debug):
[ 188.980152][ T21] Task dump for CPU 0:
[ 188.984269][ T21] task:syz-executor839 state:R running task stack:27088 pid: 4214 ppid: 4192 flags:0x0000400e
[ 188.995122][ T21] Call Trace:
[ 188.998418][ T21]
[ 189.001361][ T21] ? perf_trace_run_bpf_submit+0xf3/0x1c0
[ 189.007141][ T21] ? rcu_is_watching+0x11/0xa0
[ 189.011927][ T21] ? trace_hardirqs_off_finish+0xca/0x1f0
[ 189.017750][ T21] ? common_interrupt+0x8e/0xd0
[ 189.022779][ T21] ? asm_common_interrupt+0x22/0x40
[ 189.028017][ T21] ? _raw_spin_unlock_irqrestore+0xbc/0x120
[ 189.033991][ T21] ? _raw_spin_unlock+0x40/0x40
[ 189.038860][ T21] ? do_raw_spin_unlock+0x11d/0x230
[ 189.044114][ T21] ? try_to_wake_up+0x69d/0x1050
[ 189.049092][ T21] ? wake_up_q+0x78/0xc0
[ 189.053402][ T21] ? __mutex_unlock_slowpath+0x658/0x6c0
[ 189.059059][ T21] ? mutex_unlock+0x10/0x10
[ 189.063629][ T21] ? bpf_lsm_capable+0x5/0x10
[ 189.068318][ T21] ? security_capable+0x85/0xb0
[ 189.073251][ T21] ? trace_event_reg+0x21f/0x260
[ 189.078216][ T21] ? perf_trace_event_init+0x386/0xa10
[ 189.083720][ T21] ? rcu_lock_release+0x9/0x20
[ 189.088514][ T21] ? perf_trace_init+0x20a/0x2d0
[ 189.093516][ T21] ? perf_tp_event_init+0x89/0x110
[ 189.098647][ T21] ? perf_try_init_event+0x12b/0x3d0
[ 189.104062][ T21] ? perf_event_alloc+0xfcf/0x2240
[ 189.109211][ T21] ? __se_sys_perf_event_open+0x5de/0x1bb0
[ 189.115089][ T21] ? __x64_sys_perf_event_open+0xc0/0xc0
[ 189.120750][ T21] ? lockdep_hardirqs_on+0x94/0x140
[ 189.126092][ T21] ? __x64_sys_perf_event_open+0x1c/0xc0
[ 189.131860][ T21] ? do_syscall_64+0x4c/0xa0
[ 189.136517][ T21] ? clear_bhb_loop+0x30/0x80
[ 189.141208][ T21] ? clear_bhb_loop+0x30/0x80
[ 189.145923][ T21] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 189.152013][ T21]